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SG169270A1 - Non-volatile memory using pyramidal nanocrystals as electron storage elements - Google Patents

Non-volatile memory using pyramidal nanocrystals as electron storage elements

Info

Publication number
SG169270A1
SG169270A1 SG201004882-5A SG2010048825A SG169270A1 SG 169270 A1 SG169270 A1 SG 169270A1 SG 2010048825 A SG2010048825 A SG 2010048825A SG 169270 A1 SG169270 A1 SG 169270A1
Authority
SG
Singapore
Prior art keywords
pyramidal
volatile memory
nanocrystals
storage elements
electron storage
Prior art date
Application number
SG201004882-5A
Inventor
Quek Elgin
Yin Chunshan
Tan Shyue Seng
Lee Jae Gon
Tan Chung Foong
Original Assignee
Globalfoundries Sg Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Globalfoundries Sg Pte Ltd filed Critical Globalfoundries Sg Pte Ltd
Publication of SG169270A1 publication Critical patent/SG169270A1/en

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/60—Insulated-gate field-effect transistors [IGFET]
    • H10D30/68—Floating-gate IGFETs
    • H10D30/6891—Floating-gate IGFETs characterised by the shapes, relative sizes or dispositions of the floating gate electrode
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
    • G11C16/0408—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors
    • G11C16/0416—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells containing floating gate transistors comprising cells containing a single floating gate transistor and no select transistor, e.g. UV EPROM
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10B—ELECTRONIC MEMORY DEVICES
    • H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
    • H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/60—Insulated-gate field-effect transistors [IGFET]
    • H10D30/68—Floating-gate IGFETs
    • H10D30/6891—Floating-gate IGFETs characterised by the shapes, relative sizes or dispositions of the floating gate electrode
    • H10D30/6893—Floating-gate IGFETs characterised by the shapes, relative sizes or dispositions of the floating gate electrode wherein the floating gate has multiple non-connected parts, e.g. multi-particle floating gate
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D64/00—Electrodes of devices having potential barriers
    • H10D64/01—Manufacture or treatment
    • H10D64/031—Manufacture or treatment of data-storage electrodes
    • H10D64/035—Manufacture or treatment of data-storage electrodes comprising conductor-insulator-conductor-insulator-semiconductor structures
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C2216/00—Indexing scheme relating to G11C16/00 and subgroups, for features not directly covered by these groups
    • G11C2216/02—Structural aspects of erasable programmable read-only memories
    • G11C2216/06—Floating gate cells in which the floating gate consists of multiple isolated silicon islands, e.g. nanocrystals

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Volatile Memory (AREA)
  • Semiconductor Memories (AREA)

Abstract

A non-volatile memory device includes a floating gate with pyramidal-shaped silicon nanocrystals as electron storage elements. Electrons tunnel from the pyramidal-shaped silicon nanocrystals through a gate oxide layer to a control gate of the non-volatile memory device. The pyramidal shape of each silicon nanocrystal concentrates an electrical field at its peak to facilitate electron tunneling. This allows an erase process to occur at a lower tunneling voltage and shorter tunneling time than that of prior art devices.
SG201004882-5A 2009-08-21 2010-07-07 Non-volatile memory using pyramidal nanocrystals as electron storage elements SG169270A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/583,486 US8446779B2 (en) 2009-08-21 2009-08-21 Non-volatile memory using pyramidal nanocrystals as electron storage elements

Publications (1)

Publication Number Publication Date
SG169270A1 true SG169270A1 (en) 2011-03-30

Family

ID=43605285

Family Applications (1)

Application Number Title Priority Date Filing Date
SG201004882-5A SG169270A1 (en) 2009-08-21 2010-07-07 Non-volatile memory using pyramidal nanocrystals as electron storage elements

Country Status (2)

Country Link
US (2) US8446779B2 (en)
SG (1) SG169270A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102024756A (en) * 2009-09-18 2011-04-20 中芯国际集成电路制造(上海)有限公司 Method for forming nanometer crystalline silicon structure used for manufacturing integrated circuit devices
CN102044544B (en) * 2009-10-13 2012-12-05 中芯国际集成电路制造(上海)有限公司 Non-volatile memory with floating gates and formation method thereof
US9634105B2 (en) * 2015-01-14 2017-04-25 Taiwan Semiconductor Manufacturing Co., Ltd. Silicon nano-tip thin film for flash memory cells
US20160260815A1 (en) * 2015-03-06 2016-09-08 Kabushiki Kaisha Toshiba Non-volatile semiconductor memory device and method of manufacturing the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225362A (en) * 1992-06-01 1993-07-06 National Semiconductor Corporation Method of manufacturing a full feature high density EEPROM cell with poly tunnel spacer
JP3378879B2 (en) * 1997-12-10 2003-02-17 松下電器産業株式会社 Nonvolatile semiconductor memory device and driving method thereof
WO2004066345A2 (en) * 2003-01-22 2004-08-05 Group Iv Semiconductor Inc. Doped semiconductor nanocrystal layers and preparation thereof
JP3762385B2 (en) * 2003-04-28 2006-04-05 株式会社東芝 Nonvolatile semiconductor memory device
US7045851B2 (en) * 2003-06-20 2006-05-16 International Business Machines Corporation Nonvolatile memory device using semiconductor nanocrystals and method of forming same
EP1702354A2 (en) * 2003-12-16 2006-09-20 Stmicroelectronics SA Single-crystal semiconductor layer with heteroaromatic macro-network
WO2006137895A2 (en) * 2004-09-30 2006-12-28 The Trustees Of Boston College Single crystal metal nanocrystals

Also Published As

Publication number Publication date
US20110044115A1 (en) 2011-02-24
US8824208B2 (en) 2014-09-02
US8446779B2 (en) 2013-05-21
US20130328118A1 (en) 2013-12-12

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